CN1167581C - A method and apparatus for packaging ultra fine powders into containers - Google Patents

A method and apparatus for packaging ultra fine powders into containers Download PDF

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Publication number
CN1167581C
CN1167581C CNB018057578A CN01805757A CN1167581C CN 1167581 C CN1167581 C CN 1167581C CN B018057578 A CNB018057578 A CN B018057578A CN 01805757 A CN01805757 A CN 01805757A CN 1167581 C CN1167581 C CN 1167581C
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CN
China
Prior art keywords
container
valve
port
powder conveying
medial compartment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB018057578A
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Chinese (zh)
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CN1406191A (en
Inventor
大卫・爱德华・迪根
大卫·爱德华·迪根
・保罗・约翰逊
蒂莫西·保罗·约翰逊
托弗・大卫・查普曼
克里斯托弗·大卫·查普曼
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Tetronics International Ltd
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Tetronics Ltd
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Publication of CN1406191A publication Critical patent/CN1406191A/en
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Publication of CN1167581C publication Critical patent/CN1167581C/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/18—Preventing escape of dust
    • B65G69/181—Preventing escape of dust by means of sealed systems
    • B65G69/183—Preventing escape of dust by means of sealed systems with co-operating closure members on each of the parts of a separable transfer channel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/025—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/001—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves
    • B65B39/004—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves moving linearly
    • B65B39/005—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves moving linearly transverse to flow direction

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Vacuum Packaging (AREA)
  • Basic Packing Technique (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Sliding Valves (AREA)

Abstract

The apparatus comprises a powder dispenser portion with an outlet port which opens into a loading chamber (6). A slide gate valve assembly (10) selectively closes the port and a disc valve assembly (5) is provided above the slide gate valve assembly. Containers (19) are loaded into the loading chamber (6) and are located beneath the port and are then purged with inert gas. The slide gate valve assembly (10) and disc valve assembly (5) are then opened to allow container (19) to be filled with ultra fine powder.

Description

Be used for the method and apparatus of packaging ultra fine powders to container
Technical field
The present invention relates to a kind of being used for the method and apparatus of packaging ultra fine powders to container.
Background technology
The unit diameter less than 1 micron superfines particularly the unit diameter compare with weight less than the nanometer powder of 100 nanometers and have bigger face area.Because higher surface energy, these powder contaminated easily and in some cases can with the air vigorous reaction.Form for powder being remained on when producing need be stored in it in medium that can not react, for example in unreactable gas or other the fluid medium.The invention provides a kind of method, this method can clear out powder in nullvalent environment from the reaction production facilities, and this method can repeat and be suitable for stock production.
Summary of the invention
According to a first aspect of the invention, provide a kind of under controlled environment in sealed equipment with the method for packaging ultra fine powders in the container, internal environment in the described equipment not can with powdered reaction, described equipment comprises a powder conveying chamber, powder supplies to this powder conveying chamber from the reaction production facilities, described powder conveying chamber has a port that is used for receiving vessel, described port is selectively closed by one first valve, this first valve is used to seal described port, and wherein each container can selectively cut out by second valve that is used to seal described container; Said method comprising the steps of, close first valve that is used to seal described port, a container is fixed on described port, open first valve; Second valve is also opened, and powder is imported in the container; Close first and second valves that are used to seal described port and described container; And described container separated from described port; The lowermost portion of described powder conveying chamber places a charging chamber, and described method further comprises, container is loaded in the charging chamber, and purges described charging chamber and described container.
In two valves one is used for sealed port, and another is used for airtight container, and the use of these two valves makes that the controlled environment in described equipment can obtain safeguarding, a kind of quantity-produced method that is suitable for also is provided simultaneously.Supply for receptacles can be realized at an easy rate automatically to equipment.And this method makes powder can supply to the powder conveying chamber continuously, and powder can be removed in container in batches simultaneously.
Described first valve and second valve can be the valves of any kind, as long as it can sealed port and container.Preferably they can separately be operated.Preferably, in described first and second valves at least one is the slip sluice valve, gate elements in this slip sluice valve can be slided between opening structure and closing structure, in Unclosing structure, described gate elements can not intercept the port or the passage of described container, in closing structure, described gate elements is with the port or the channel seal of described container.Preferably, described flashboard is provided with at least one inclined surface, this inclined surface cooperates with the inclined-plane of complementation in valve housing, described thus flashboard makes described inclined surface overlap on the described inclined-plane with respect to the slip of described housing, therefore makes described flashboard engage with described port or seal of vessel.Preferably, described port and/or container are surrounded by at least one O shape circle, and described flashboard is resisted against O shape circle and goes up sealed.
Can also be like this, when each container was processed, a small amount of reaction gas was known from experience leakage and is entered in the powder conveying chamber of described equipment.A way that addresses this problem is exactly the lowermost portion of powder conveying chamber and container to be placed in the charging chamber handle, be full of in the charging chamber not can with the gas of powdered reaction.Preferably, this charging chamber is purged, and container is also purged.
But,, a small amount of gas meeting and powdered reaction are arranged still even like this.Therefore, preferably, also be provided with the 3rd valve, the remainder of part and described powder conveying chamber that the 3rd valve is arranged to selectively will to have the described powder conveying chamber of port separates, limit the medial compartment between first valve and the 3rd valve thus, can not be fed into described medial compartment with the gas of powdered reaction, and one scavenging line derive from described medial compartment, this method further comprises, close under the situation at first valve and the 3rd valve, with not can with the described medial compartment of the gas purging of powdered reaction, arrive acceptable low-level up to the reacting gas in described medial compartment.
According to a second aspect of the invention, also providing a kind of is used for the combination of packaging ultra fine powders to the equipment of container, and at least one container, described equipment comprises is arranged to comprise the not sealing unit of reaction environment, one is configured to receive the powder conveying chamber of powder feeding, described powder conveying chamber has a port that is used to receive a container, described port is selectively closed by first valve of sealed port, and lead to the charging chamber that is used to accept described container, described charging chamber has purge gas circulation, thereby allows that described charging chamber and container are purged; Described container selectively cuts out by second valve that seals described container, described container has is arranged to the surface that engages with described port, also be provided with the 3rd valve, the remainder of part and described powder conveying chamber that the 3rd valve is arranged to selectively will to have the described powder conveying chamber of port separates, limit the medial compartment between first valve and the 3rd valve thus, can not be fed into described medial compartment, and a scavenging line leaves described medial compartment with the gas of powdered reaction.
Description of drawings
Fig. 1 is the cross sectional drawing with container bonded assembly pad device;
Fig. 2 is the transparent view of single sliding gate valve; And
Fig. 3 and Fig. 1 are similar, just will take off on the container slave unit.
The specific embodiment
Equipment as shown in Fig. 1 and Fig. 3 is included in its powder delivery duct 1 topmost, and this pipeline is a Y font structure.The superfines that is pulled away in unreactable gas is supplied to being directed downwards of arrow 2 by the left hand arm of described pipeline 1, in contrast, superfines upwards flows at the right hand arm of described pipeline 1 with the direction of arrow 3, closely locate at powder, powder strikes (not shown) on filter cloth or the filter bag.Periodically, on filter cloth or filter bag, apply air pulsing and/or pneumatic vibration, thereby the agglomerating particle of powder moved in the collecting chamber 4, these agglomerating particles against upwards the flowing of right hand arm of described pipeline 1 to the whereabouts.Agglomerating powder need be handled under the effect of gravity.These agglomerating powder can use weak mechanical force to pulverize (for example ultrasonic processing) again.The lower end of collecting chamber 4 is had seal butterfly valve assembly 5 sealings of conventional structure.Temperature in the collecting chamber 4 monitors by using thermocouple, and dish valve module 5 only just can be worked when temperature drops under the spontaneous combustion temperature that is lower than collected material really fixed temperature.
Being positioned under the dish valve module 5 is feed compartment 6, and feed compartment is filled in unreactable gas, and this unreactable gas is a low pressure, but will be higher than barometric pressure.
Medial compartment 7 be connected with dish valve module 5 and be located immediately at its below sealed, medial compartment 7 is among feed compartment 6.High-pressure inert gas supply line 8 leads to medial compartment 7, and scavenging line (purge line) 9 leaves medial compartment 7 simultaneously.These pipelines all are provided with the control cock (not shown) that is used to control the fluid that passes through.Be slidably sluice valve assembly 10 of first compressed-air controlled that has an actuating unit under medial compartment, this sluice valve assembly is arranged to selectively seal the lower end of medial compartment.This assembly comprises the concentric O shape circle 11 bottom of a pair of encirclement medial compartment 7.Housing 12 leans against under the medial compartment 7.Housing 12 separates with the lowest surface of medial compartment 7, supports a pair of inclined-plane 14 simultaneously, and this inclined-plane 14 is preferably such as shown in Figure 2.Sliding gate element 15 is provided with the inclined surface 16 of a pair of complementation that cooperates with inclined-plane 14.Shown in Figure 1 is the opening structure of valve, and wherein gate elements 15 is shunk from housing 12, makes the bottom of medial compartment 7 open thus.In Fig. 3, valve is closed, and wherein gate elements 15 slips into housing 12 fully.At the trailing portion of its traveling process, inclined-plane 14 and inclined surface 16 engagements make gate elements 15 be resisted against on the O shape circle 11 so gate elements 15 enters the further motion of housing 12, and the bottom surface with medial compartment 7 seals thus.
As shown in figs. 1 and 3, the container 19 that cooperates with load transfer device has and its lowest surface bonded assembly sliding gate assembly 20.This sliding gate assembly 20 is the same with sliding gate assembly 10, except reversing is provided with as that shown in FIG..Therefore, sliding gate assembly 20 is not explained in detail here.But the label among Fig. 1 and Fig. 3 uses the label in sliding gate assembly 10, except beginning " 2 " replacement " 1 " of each label.Therefore, the sliding gate assembly has O shape circle 21, housing 22, inclined-plane 24, gate elements 25 and inclined surface 26.
This equipment ground, thus can release electrostatic.
The operation of this equipment will be described below.
Before using, collecting chamber 4 and medial compartment 7 are all used inert gas purge.This gas uses long-range solenoid control to supply in the equipment.Also be provided with known pressure effect reflux valve, be used for the pressurized equipment of crossing in purge.
Level of oxygen in the equipment is come continuous monitoring by solid oxide zirconium device, and this solid oxide zirconium device is connected with pump, and this pump is sample drawn from collecting chamber 4 and charging chamber 6.
Container 19 is imported in the charging chamber 6.Container 19 is brought to the position below the medial compartment 7.Container 19 enters the motion of this position and can finish by guide track system, and container 19 moves along guide track system, thereby carries it into assigned address.At first, gate elements 15 and dish valve module 5 are all closed.Herein, charging chamber 6 is by inert gas purge.Although container 19 leans against on the housing 12, container 19 is not sealed by housing 12.Therefore, when charging chamber 6 was purged, because purge gas is heavier than the air in container, so container 19 is also purged, purge gas had replaced air simultaneously.The slit is enough to allow gas flow out between container 19 and housing 12, thereby but also is that the enough little powder that prevents is overflowed from charging chamber 6.Following dish valve module 5, gate elements 15 is opened.Now, the fullpath that falls into container 19 from medial compartment 7 has just formed.
Then, as mentioned above, powder falls into container 19 by whole assembly.Enter in the container in order to help material, the purge gas by pipeline 8 and 9 is the pulsating effect that is subjected to that is interrupted at this moment.In case container 19 is loaded into required level, dish valve module 5 and gate elements 15 are closed.This makes medial compartment 7 and collecting chamber 4 isolated, although they have identical gaseous environment.Then, gate member 25 also is closed.Along with sliding gate formula valve module is closed, container 19 can be from unclamping with engaging of sliding gate formula valve module 10 together with gate elements 25, thereby replace with the container of a sky.Spring can lockedly be closed or be loaded with to sliding gate formula valve module 20, thereby guarantee can keep sealing in the process of further container handling.At this moment, charging chamber 6 opens in atmosphere, container and be removed as its gate elements 25 of lid.Then, a new container of uncapping is placed in the charging chamber 6, and frequency as required repeats said process.

Claims (9)

1, a kind of under controlled environment in sealed equipment with the method for packaging ultra fine powders in the container, internal environment in the described equipment not can with powdered reaction, described equipment comprises a powder conveying chamber, powder supplies to this powder conveying chamber from the reaction production facilities, described powder conveying chamber has a port that is used for receiving vessel, described port is selectively closed by one first valve, this first valve is used to seal described port, and wherein each container can selectively cut out by second valve that is used to seal described container; Said method comprising the steps of, close first valve that is used to seal described port, a container is fixed on described port, open first valve; Second valve is also opened, and powder is imported in the container; Close first and second valves that are used to seal described port and described container; And described container separated from described port; The lowermost portion of described powder conveying chamber places a charging chamber, and described method further comprises, container is loaded in the charging chamber, and purges described charging chamber and described container.
2, method according to claim 1, it is characterized in that, in described first and second valves at least one is the slip sluice valve, gate elements in this slip sluice valve can be slided between opening structure and closing structure, in Unclosing structure, described gate elements can not intercept the port or the passage of described container, and in closing structure, described gate elements is with the port or the channel seal of described container.
3, method according to claim 2, it is characterized in that, also be provided with a flashboard with at least one inclined surface, this inclined surface cooperates with the inclined-plane of complementation in valve housing, described thus flashboard makes described inclined surface overlap on the described inclined-plane with respect to the slip of described housing, therefore makes described flashboard engage with described port or seal of vessel.
4, method according to claim 3 is characterized in that, described port and/or container are surrounded by at least one O shape circle, and described flashboard is resisted against O shape circle and goes up sealed.
5, according to each described method in the aforementioned claim, it is characterized in that, also be provided with the 3rd valve, the remainder of part and described powder conveying chamber that the 3rd valve is arranged to selectively will to have the described powder conveying chamber of port separates, limit the medial compartment between first valve and the 3rd valve thus, can not be fed into described medial compartment with the gas of powdered reaction, and one scavenging line derive from described medial compartment, this method further comprises, under the situation that first valve and the 3rd valve are closed, with not can with the described medial compartment of the gas purging of powdered reaction, arrive acceptable low-level up to the reacting gas in described medial compartment.
6, a kind of being used for the combination of packaging ultra fine powders to the equipment of container, and at least one container, described equipment comprises is arranged to comprise the not sealing unit of reaction environment, one is configured to receive the powder conveying chamber of powder feeding, described powder conveying chamber has a port that is used to receive a container, described port is selectively closed by first valve of sealed port, and lead to the charging chamber that is used to accept described container, described charging chamber has purge gas circulation, thereby allows that described charging chamber and container are purged; Described container selectively cuts out by second valve that seals described container, and described container has is arranged to the surface that engages with described port; Also be provided with the 3rd valve, the remainder of part and described powder conveying chamber that the 3rd valve is arranged to selectively will to have the described powder conveying chamber of port separates, limit the medial compartment between first valve and the 3rd valve thus, can not be fed into described medial compartment, and a scavenging line leaves described medial compartment with the gas of powdered reaction.
7, combination according to claim 6, it is characterized in that, in described first and second valves at least one is the slip sluice valve, gate elements in this slip sluice valve can be slided between opening structure and closing structure, in Unclosing structure, described gate elements can not intercept the port or the passage of described container, and in closing structure, described gate elements is with the port or the channel seal of described container.
8, combination according to claim 7, it is characterized in that, described flashboard is provided with at least one inclined surface, this inclined surface cooperates with the inclined-plane of complementation in valve housing, described thus flashboard makes described inclined surface overlap on the described inclined-plane with respect to the slip of described housing, therefore makes described flashboard engage with described port or seal of vessel.
9, according to Claim 8 or 9 described combinations, it is characterized in that described port and/or container are surrounded by at least one O shape circle, described flashboard is resisted against O shape circle and goes up sealed.
CNB018057578A 2000-02-29 2001-02-28 A method and apparatus for packaging ultra fine powders into containers Expired - Fee Related CN1167581C (en)

Applications Claiming Priority (2)

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GB0004845.4 2000-02-29
GBGB0004845.4A GB0004845D0 (en) 2000-02-29 2000-02-29 A method and apparatus for packaging ultra fine powders into containers

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CN1406191A CN1406191A (en) 2003-03-26
CN1167581C true CN1167581C (en) 2004-09-22

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US (1) US6796107B2 (en)
EP (1) EP1259427B1 (en)
JP (1) JP2003525180A (en)
KR (1) KR20030031887A (en)
CN (1) CN1167581C (en)
AU (1) AU3580201A (en)
CA (1) CA2401538C (en)
DE (1) DE60126064T2 (en)
GB (1) GB0004845D0 (en)
RU (1) RU2268848C2 (en)
WO (1) WO2001064521A1 (en)

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CN1406191A (en) 2003-03-26
KR20030031887A (en) 2003-04-23
US6796107B2 (en) 2004-09-28
AU3580201A (en) 2001-09-12
US20030101690A1 (en) 2003-06-05
EP1259427A1 (en) 2002-11-27
DE60126064T2 (en) 2007-11-08
WO2001064521A1 (en) 2001-09-07
EP1259427B1 (en) 2007-01-17
RU2268848C2 (en) 2006-01-27
DE60126064D1 (en) 2007-03-08
JP2003525180A (en) 2003-08-26
CA2401538A1 (en) 2001-09-07
GB0004845D0 (en) 2000-04-19
RU2002125856A (en) 2004-03-10
CA2401538C (en) 2009-09-08

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